This is the 968th most frequent Czech word.
převážně
Predominantly.
Here, 'převážně' implies that the majority presence on the beach consists of families, but other groups might be present too.
Na této pláži vidíte převážně rodiny s dětmi.
On this beach, you mostly see families with children.
In this sentence, 'převážně' emphasizes that traditional Czech dishes are the main offerings, though other dish types might exist.
Oběd v této restauraci zahrnuje převážně tradiční české pokrmy.
The lunch at this restaurant predominantly includes traditional Czech dishes.
The word 'převážně' is used to indicate that the primary activity is studying mathematics, though other subjects might be studied as well.